System-board switches
The following illustration shows the location and description of the switches.
Important
- If there is a clear protective sticker on the switch blocks, you must remove and discard it to access the switches.
- Any system-board switch or jumper block that is not shown in the illustrations in this document are reserved.
Figure 1. Location of the switches, jumpers, and buttons on the system board
The following table describes the jumpers on the system board.
| Switch block | Switch | Switch name | Usage description | |
|---|---|---|---|---|
| Open | Close | |||
| S18 | 2 | XClarity Controller boot backup | Normal (default) | The compute node will boot by using a backup of the XClarity Controller firmware. |
| 3 | XClarity Controller force update | Normal (default) | Enables XClarity Controller force update | |
| 4 | TPM physical presence | Normal (default) | Indicates a physical presence to the system TPM | |
| S19 | 1 | System UEFI backup | Normal (default) | Enables system BIOS backup |
| 2 | Password override jumper | Normal (default) | Overrides the power-on password | |
| 3 | CMOS clear jumper | Normal (default) | Clears the real-time clock (RTC) registry | |
Important
- Before you change any switch settings or move any jumpers, turn off the solution; then, disconnect all power cords and external cables. Review the information in Safety Information page, Installation Guidelines, Handling static-sensitive devices, and Power off the compute node.
- Any system-board switch or jumper block that is not shown in the illustrations in this document are reserved.
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